URI:
       Index of /pdf/northstar/advantage
       _______________________________
       
   DIR /pdf/northstar
       00451B_Northstar_Advantage_User_Manual.pdf
       00464B_Northstar_Advantage_Technical_Manual_1981.pdf
       00464C_North_Star_Advantage_Technical_Manual_partial.pdf
       02655A_Addendum_to_Graphics_CPM_Preface.pdf
       North_Star_Advantage_Graphics_CPM_Preface_1982_partial.pdf